/**
 * BibSonomy-Webapp - The web application for BibSonomy.
 *
 * Copyright (C) 2006 - 2016 Knowledge & Data Engineering Group,
 *                               University of Kassel, Germany
 *                               http://www.kde.cs.uni-kassel.de/
 *                           Data Mining and Information Retrieval Group,
 *                               University of Würzburg, Germany
 *                               http://www.is.informatik.uni-wuerzburg.de/en/dmir/
 *                           L3S Research Center,
 *                               Leibniz University Hannover, Germany
 *                               http://www.l3s.de/
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.bibsonomy.webapp.validation;

import static org.bibsonomy.util.ValidationUtils.present;

import org.bibsonomy.model.Comment;
import org.springframework.validation.Errors;

/**
 * @author dzo
 */
public class CommentValidator extends DiscussionItemValidator<Comment> {

	@Override
	protected void validateDiscussionItem(final Comment comment, final Errors errors) {
		final String text = comment.getText();
		if (!present(text)) {
			errors.rejectValue(DISCUSSION_ITEM_PATH + "text", "error.field.valid.comment.text");
		} else {
			if (text.length() > Comment.MAX_TEXT_LENGTH) {
				errors.rejectValue(DISCUSSION_ITEM_PATH + "text", "error.field.valid.comment.text.length", new Object[] { Comment.MAX_TEXT_LENGTH }, "The text is too long. Only " + Comment.MAX_TEXT_LENGTH + " characters allowed.");
			}
		}
	}
}
